Q
What does the following JavaScript code snippet do? Code: let x = 'Hello'; console.log(x.toUpperCase());

Answer & Solution

Answer: Option C
Solution:
The code snippet converts the string x to uppercase using the toUpperCase() method. This method returns a new string with all alphabetic characters converted to uppercase. Therefore, the output of the code will be 'HELLO'.
Related Questions on Average

What will be the output of the following JavaScript code? Code: let x = 40; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). A) Even

B). B) Odd

C). C) 40

D). D) None of the above

What will be the output of the following JavaScript code? Code: console.log(typeof null);

A). A) Object

B). B) Null

C). C) Undefined

D). D) String

What will be the output of the following JavaScript code? Code: let x = 30; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). A) Even

B). B) Odd

C). C) 30

D). D) None of the above

What does the following JavaScript code snippet do? Code: let names = ['Alice', 'Bob', 'Charlie']; let message = 'Names: ' + names.join(', '); console.log(message);

A). A) Adds names to an array

B). B) Joins names from an array into a single string

C). C) Splits names into an array

D). D) Reverses the order of names in an array

What will be the output of the following JavaScript code? Code: let x = 35; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). A) Even

B). B) Odd

C). C) 35

D). D) None of the above

What will be the output of the following JavaScript code? Code: console.log('20' - 10);

A). A) 10

B). B) 30

C). C) '2010'

D). D) NaN

What will be the output of the following JavaScript code? Code: let x = 8; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). A) Even

B). B) Odd

C). C) 8

D). D) None of the above

What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let max = Math.max(...numbers); console.log(max);

A). A) Calculates the sum of numbers in numbers

B). B) Finds the maximum number in numbers

C). C) Calculates the product of numbers in numbers

D). D) Checks if all numbers in numbers are even

What will be the output of the following JavaScript code? Code: console.log(2 + 2 + '2');

A). A) 42

B). B) 22

C). C) 4'2'

D). D) '22'

What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let min = Math.min(...numbers); console.log(min);

A). A) Calculates the sum of numbers in numbers

B). B) Finds the minimum number in numbers

C). C) Calculates the product of numbers in numbers

D). D) Checks if all numbers in numbers are even